Nonstop flight route between Fort Sill, Oklahoma, United States and Miles City, Montana, United States:
Departure Airport:

Arrival Airport:

Distance from FSI to MLS:
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- About this route
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About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Miles City Airport (MLS), Miles City, Montana, United States would travel a Great Circle distance of 903 miles (or 1,453 kilometers).
A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the relatively short distance between Henry Post Army Airfield and Miles City Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | FSI / KFSI |
Airport Name: | Henry Post Army Airfield |
Location: | Fort Sill, Oklahoma, United States |
GPS Coordinates: | 34°38'58"N by 98°24'7"W |
Operator/Owner: | U.S. Army ATCA-ASO |
Airport Type: | Military |
Elevation: | 1189 feet (362 meters) |
# of Runways: | 1 |
View all routes: | Routes from FSI |
More Information: | FSI Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | MLS / KMLS |
Airport Names: |
|
Location: | Miles City, Montana, United States |
GPS Coordinates: | 46°25'41"N by 105°53'9"W |
Area Served: | Miles City, Montana |
Operator/Owner: | Miles City |
Airport Type: | Public |
Elevation: | 2630 feet (802 meters) |
# of Runways: | 2 |
View all routes: | Routes from MLS |
More Information: | MLS Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- Henry Post Army Airfield is a military use airport located at Fort Sill in Comanche County, Oklahoma, United States.
- In 1940 the Artillery decided that the Air Corps had outgrown such mundane chores as artillery spotting, and it was decided that it would take care of itself with its own observation aircraft.
- The furthest airport from Henry Post Army Airfield (FSI) is Sir Gaëtan Duval Airport (RRG), which is located 10,920 miles (17,575 kilometers) away in Rodrigues Island, Mauritius.
- The closest airport to Henry Post Army Airfield (FSI) is Lawton–Fort Sill Regional Airport (LAW), which is located only 6 miles (9 kilometers) S of FSI.
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
- The Fort Sill Army Radar Approach Control is the Army's Second busiest Air Traffic Control Facility, providing Radar Approach Control service to Henry Post Army Air Field, Lawton/Fort Sill Regional Airport, Duncan/Haliburton Airport and many smaller airports in the area.
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
- After returning from combat duty in France, a cadre of the 135th Aero Squadron ) was assigned to Post Field as an observation squadron, supplying aircraft for the United States Army Field Artillery School at Fort Sill and supported Army units at Fort Leavenworth, Kansas.
Facts about Miles City Airport (MLS):
- Scheduled air service temporarily ceased on March 8, 2008, when Big Sky Airlines ended operations in bankruptcy.
- The furthest airport from Miles City Airport (MLS) is Sir Gaëtan Duval Airport (RRG), which is located 10,496 miles (16,892 kilometers) away in Rodrigues Island, Mauritius.
- Federal Aviation Administration records say the airport had 264 passenger boardings in calendar year 2008, 891 in 2009 and 1,033 in 2010.
- In addition to being known as "Miles City Airport", another name for MLS is "Frank Wiley Field".
- The closest airport to Miles City Airport (MLS) is Dawson Community Airport (GDV), which is located 71 miles (114 kilometers) NE of MLS.
- Frank Wiley Field covers 1,640 acres at an elevation of 2,630 feet.
- Miles City Airport (MLS) has 2 runways.